richnessmap: Map of the number of species or number of records per grid...
In biogeo: Point Data Quality Assessment and Coordinate Conversion

Description Usage Arguments Details Value Author(s) See Also Examples

Creates a raster map of the number of species or number of records per grid cell

1	richnessmap(dat, rst, option = "richness")

`dat`	a dataframe containing fields with the following names: ID, x, y, Species, x_original, y_original, Correction, Modified, Exclude
`rst`	a raster object
`option`	"richness" gives species richness and "records" gives total number of records per grid cell

grid cells are based on rst

a raster object containing species richness or numbers of records per grid cell

Mark Robertson

pointsworld

## Not run: 
dem<-raster(dem,xmn=-180, xmx=180, ymn=-60, ymx=90)
rich<-richnessmap(dat,dem,option="richness")
nrec<-richnessmap(dat,dem,option="records")

## End(Not run)